OpenSubdiv/examples/glViewer/CMakeLists.txt
manuelk 00b0d95058 Remove CMake compiling redundancies
- set OBJECT targets for osd cpu & gpu libs, and use the obj target for
  static and dynamic linking

- add a new examples_common_obj OBJECT target
- replace direct source dependencies to obj target in all examples CMakeLists

This change makes it possible to not re-compile the same source files
multiple times when they are used in multiple targets. Thanks to jcowles
for uncovering the CMake functionality.

Note: it seems that multi-process build is working again (gmake -j <x>)
2014-01-03 13:39:48 -08:00

83 lines
2.7 KiB
CMake

#
# Copyright 2013 Pixar
#
# Licensed under the Apache License, Version 2.0 (the "Apache License")
# with the following modification; you may not use this file except in
# compliance with the Apache License and the following modification to it:
# Section 6. Trademarks. is deleted and replaced with:
#
# 6. Trademarks. This License does not grant permission to use the trade
# names, trademarks, service marks, or product names of the Licensor
# and its affiliates, except as required to comply with Section 4(c) of
# the License and to reproduce the content of the NOTICE file.
#
# You may obtain a copy of the Apache License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the Apache License with the above modification is
# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the Apache License for the specific
# language governing permissions and limitations under the Apache License.
#
# *** glViewer ***
set(SHADER_FILES
shader.glsl
shader_gl3.glsl
)
set(PLATFORM_LIBRARIES
${OSD_LINK_TARGET}
${OPENGL_LIBRARY}
${GLFW_LIBRARIES}
)
include_directories(
${PROJECT_SOURCE_DIR}/opensubdiv
${PROJECT_SOURCE_DIR}/regression
${GLFW_INCLUDE_DIR}
)
if ( GLEW_FOUND )
include_directories(${GLEW_INCLUDE_DIR})
list(APPEND PLATFORM_LIBRARIES ${GLEW_LIBRARY})
endif()
#-------------------------------------------------------------------------------
# Shader Stringification
# We want to use preprocessor include directives to include GLSL and OpenCL
# shader source files in cpp files, but since the sources contain newline
# characters we would need raw string literals from C++11 to do this directly.
# To avoid depending on C++11 we instead use a small tool called "line_quote"
# to generate source files that are suitable for direct inclusion.
foreach(shader_file ${SHADER_FILES})
string(REGEX REPLACE ".*[.](.*)" "\\1" extension ${shader_file})
string(REGEX REPLACE "(.*)[.].*" "\\1.inc" inc_file ${shader_file})
list(APPEND INC_FILES ${inc_file})
add_custom_command(
OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/${inc_file}
COMMAND stringify ${CMAKE_CURRENT_SOURCE_DIR}/${shader_file}
${CMAKE_CURRENT_SOURCE_DIR}/${inc_file}
DEPENDS stringify ${CMAKE_CURRENT_SOURCE_DIR}/${shader_file}
)
endforeach()
_add_glfw_executable(glViewer
viewer.cpp
${SHADER_FILES}
${INC_FILES}
$<TARGET_OBJECTS:examples_common_obj>
)
target_link_libraries(glViewer
${PLATFORM_LIBRARIES}
)
install(TARGETS glViewer DESTINATION ${CMAKE_BINDIR_BASE})